Low-water indicator



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UNITED STATES PATENT OFFICE.

OHRISTOPH F. KURZ, OF NEWARK, NEW JERSEY.

LOW-WATER IN DICATO R.

SPECIFICATION forming part of Letters Patent No. 234,295, dated November 9, 1880.

Application filed April 30, 1880. (No model.)

To all whom it may concern Be it known that I, OHRIs'roPH F. KURZ, of Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Low-Water Indicators; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompa nying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to certain new and useful improvements in low-water indicators, as shown in Patent No. 208,829, granted to me October 8, 1878; and it consists in the com struction and arrangement of parts, as will he hereinafter more fully set forth.

In the annexed drawings, Figure 1 is a side elevation, partly in section; Fig. 2, rear view of the front casing. Fig. 3 is an enlarged central vertical section. Fig. 4 is a detail.

A represents an upright steam-boiler, to one side of which is attached a cylindrical casing, B, provided with a head, G, fastened thereto by bolts and packed in suitable manner to make a steam and water tight joint.

D is a steam-pipe connecting the top of the boiler with the top of the casing B. D is the water-pipe which connects the bottom of the casing with the water-space of the boiler, and hence the water will stand in the casing at the same height as in the boiler and rise and fall therewith.

On top of the casing B is a steam-Whistle, E, which communicates, by means of a pipe, at, with the interior of the casing. A valve, 11, is placed in said pipe, so that it may be opened or closed as desired. To the pipe at are attached the arms F, between which arms the main valve operates.

G is the'main valve, working in the end of pipe a, having an opening in its lower end to receive the leverc attached to the journal d, to which journal are also secured the arms e, which hold the ball or float H.

1 represents the sliding boxes of thejournalbearings, said boxes being provided with lu gs f, on which the arms 6 rest and prevent the valve from being drawn out of the pipe.

The bearings g of the journal 01 are glass, thereby preventing friction and allowing the device to operate easily.

The operation of the device is as follows: As the water ascends into the box it elevates the ball, thus closing the valve. As the water recedes the ball sinks with the same and opens the valve with the assistance of the lever, so that the steam entering through the upper pipe passes through the valve and escapes through the steam-whistle, which will blow for the length of time until the water is pumped up again and closes the valve.

The valve is fastened to the casing by a female screw.

The device may be used as well for horizontal as upright boilers, if desired.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In a low-water indicator, the journal (1, having the glass bearings g, and boxes I, having the lugsf, in combination with the arms 6 and float H, all arranged substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

CHRISTOPH F. KURZ.

Witnesses:

SEBASTIAN BISOHOFF, A. HERZINGER. 

